import { HashSet } from "@tsplus/stdlib/collections/HashSet/definition";
/**
 * Adds a value to the `HashSet`.
 * @tsplus pipeable-operator HashSet +
 * @tsplus static HashSet.Aspects add
 * @tsplus pipeable HashSet add
 * @tsplus location "@tsplus/stdlib/collections/HashSet/operations/add"
 */
export declare function add<A>(value: A): (self: HashSet<A>) => HashSet<A>;
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